Made of Natural wood, each Tree trunk Stump is a different height ranging from 5"-15", Diameter varies 8"-15". Natural finish (no sealant). Set of 5 Stumps are perfect for stepping, sitting or balance. Indoor or Outdoor use. Ages 2 + TRUCK Oversized Freight. As of 2020 the cedar is now treated with "penetrating wood finish" to help prevent mold and promote product longgevity. Wood stumps come with bark on and each peice is unique in its natural condition.